Ctrlbus Audio · Harmonic Channel Strip

RootControl

Mix in the root.

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$49  $79  LAUNCH PRICE
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RootControl Plugin Interface

Five Harmonic Bands

Every frequency.
In its place.

Five named bands. Each tuned to a specific frequency character. Each with a full processing stack built in.

Body
Sub Frequencies
The foundation of your mix. Control the sub and low-end weight of your sound with surgical precision.
EQ
Saturation
Dyn EQ
Comp
Limiter
Sidechain
Definition
Low Frequencies
Shape the low end punch and clarity. Define the character of your bass and kick.
EQ
Saturation
Dyn EQ
Comp
Limiter
Sidechain
Color
Low-Mid Frequencies
Where warmth and mud live. Sculpt the color and tone of your mix with precision.
EQ
Saturation
Dyn EQ
Comp
Limiter
Sidechain
Presence
Mid Frequencies
Cut through the mix. Control the forward presence and intelligibility of every element.
EQ
Saturation
Dyn EQ
Comp
Limiter
Sidechain
Air
Mid-High Frequencies
Breathe life into the top end. Designed with M/S routing for wide, open mixes.
EQ
Saturation
Dyn EQ
Comp
Limiter
Sidechain

Root Key Intelligence

EQ in key.
Mix in harmony.

Select your track's root key and RootControl sets every band's EQ points to the harmonic octaves within that key. No guesswork. No clashing frequencies. Just musical, surgical control.

  • ◆ EQ points lock to octaves within the selected key — every cut and boost is harmonically aware
  • ◆ Works across all 12 keys — C through B — for any track in any key
  • ◆ Combine with per-band dynamics for mixing decisions that are both musical and technical
C C# D D# E F F# G G# A A# B
Band Centers · Key of B
Body 61.7 Hz
Definition 123.5 Hz
Color 246.9 Hz
Presence 493.9 Hz
Air 987.8 Hz

Per-Band Processing

A full channel strip.
On every band.

Every one of RootControl's five bands carries a complete processing chain. Shape, compress, saturate and limit — with the precision of a dedicated processor on each frequency range.

01
EQ + Filter
HPF, Shelf, Bell and LPF modes with Gain, Q and Saturation controls. Shape each band with the precision of a dedicated EQ.
Per Band
02
Dynamic EQ
Frequency-specific dynamic EQ that responds to the signal. Tame problem frequencies only when they appear.
Per Band
03
Compression
Full compressor with Threshold, Ratio, Attack, Release and Makeup gain. Tighten each frequency range independently.
Per Band
04
Saturation
Five saturation modes — Tube, Tape, OD, Soft and Trans — add harmonic character and color to any frequency band.
Per Band
05
Limiter
Per-band brick wall limiting with True Peak detection. Keep each frequency range controlled without affecting the others.
Per Band
06
Sidechain
Internal and external sidechain routing on every band. Duck any frequency range from any source in your session.
Per Band

Technical Specifications

Built for every workflow.

Formats VST3 · AU · AAX
Platform macOS · Windows
Compatibility All major DAWs
Architecture Apple Silicon · Intel · x64
Activations 2 machines per license
License Perpetual · Updates included
macOS 10.13 High Sierra or later
Windows Windows 10 or later

Pricing

Get RootControl.

Launch Price
$ 49

Regular price $79 — Limited time offer

Buy RootControl — $49 Download Free Trial
  • Perpetual license — yours forever
  • 2 machine activations
  • All minor updates included free
  • VST3, AU, and AAX included
  • macOS and Windows
  • All major DAWs supported

FAQ

Questions.

What DAWs does RootControl work with? +
RootControl works with all major DAWs including Ableton Live, Logic Pro, Pro Tools, FL Studio, Cubase, Studio One, Reaper, and more. It is available in VST3, AU, and AAX formats.
How many computers can I install it on? +
Each license allows activation on 2 machines simultaneously. You can register additional machines to your account and manage which two are active at any time through your account portal.
Do updates cost extra? +
Minor updates and bug fixes within the same major version are always free. Major version upgrades (e.g. RootControl 2.0) are paid upgrades, though existing customers receive a significant discount.
Is there a free trial? +
Yes — a fully functional free trial is available. Try every feature before you buy.
What is the Root Key selector? +
The Root Key selector sets each band's EQ center frequency to the harmonic octaves within your selected key. This means every boost and cut you make is musically aligned to your track's key, making harmonic mixing more intuitive and surgical.
What is your refund policy? +
Refunds are available within 14 days of purchase if the license has not been activated. Once activated, all sales are final. We encourage you to try the free trial before purchasing.